Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 448

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-448 A Melcher IA KNVLIAXCTMD  221F ONVOY, LLC - IA 632      
641-448 0 Melcher IA   221F ONVOY, LLC - IA 632   2022-11-18   
641-448 2 Melcher IA   221F ONVOY, LLC - IA 632   2021-04-22   
641-448 3 Melcher IA   221F ONVOY, LLC - IA 632   2021-04-22   
641-448 4 Melcher IA   221F ONVOY, LLC - IA 632   2020-11-23   
641-448 5 Melcher IA   221F ONVOY, LLC - IA 632   2020-11-23   
641-448 6 Melcher IA   221F ONVOY, LLC - IA 632   2020-01-03   
641-448 7 Melcher IA   624H ONVOY SPECTRUM, LLC 632   2024-03-09   
641-448 8 Melcher IA   145J TERRA NOVA TELECOM INC. 632   2025-06-06   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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